Maryland Board of Physicians

Physician Profile Portal

This data was extracted on 9/30/2025.

License Number: D0042989 Dr. Denis Peter O'Brien

License Type: Physician-Medical Doctor
License Status: Active
License Issued: 03/16/1992 License Expiration: 09/30/2027

Licensure Pathway: Traditional
Special License Category: N/A

Primary Practice Setting

Centers for Advanced Orthopaedics
3414 Olandwood Court
Olney, MD 20832

Public Address

3414 Olandwood Court
Olney, MD 20832

Education

GEORGETOWN UNIV SCH OF MED
Graduation Year: 1983

Medical Assistance and Malpractice Insurance

Accept Medicaid? No

Maintains Malpractice Insurance? Yes

Postgraduate Training Program

School	Concentration
Georgetown University Medical Center, Washington, DC	Surgery
Georgetown University Medical Center, Washington, DC	Orthopaedic Surgery

Specialty Board Certification (as reported by licensee)

by American Board of Medical Specialties (ABMS), American Osteopathic Association (AOA), Royal College of Physicians and Surgeons of Canada (RCPSC), or the College of Family Physicians of Canada (CFPOC).

Orthopaedic Surgery

None/Not applicable

Self-Designated Practice Area (as reported by licensee)

Orthopaedic Surgery

Maryland Hospital Privilege Information (as reported by licensee)

Medstar Montgomery Medical Center

Johns Hopkins Howard County Medical Center

Holy Cross Germantown Hospital

Medical Licenses Held in Other States (as reported by licensee)

Licensee has not reported Medical Licenses Held in Other States information for the profile site.

Collaboration and Consultation Agreements for Naturopathic Doctors

Collaboration and Consultation Agreements have not been reported for the profile site.

Active Supervisor - Evaluation and Treatment Protocols for Athletic Trainers

Evaluation and Treatment protocols have not been reported for the profile site.

Supervised Genetic Counselor - Active Supervisor

Supervisor Agreements have not been reported for the profile site.

Active Supervisor - Delegation Agreement For Core Duties

C0001625 MICHAEL E RONAN Status: Approved | Approved Date: 02/26/2003 | Agreement No: 3147

Download all Maryland Disciplinary Actions (not time-limited)

All Orders are downloaded in .pdf format.

None.

Summary of Known Disciplinary Actions by any state medical board (within the past 10 years) Please Read Description

In Maryland:

No Known Disciplinary Actions by the Maryland Board of Physicians have been reported.

Other States:

No Known Disciplinary Actions by any other state medical board have been reported.

Pending Charges Please Read Disclaimer

All Charges are downloaded in .pdf format.

None.

Other Public Actions in the Practice of the Profession or Administrative Fines (including Maryland) Please Read Description

No reported Other Public Actions in the Practice of the Profession or Administrative Fines (incl. Maryland) for this licensee.

MALPRACTICE (Information to be taken into consideration when reviewing a licensee's profile)

Please Read Malpractice Disclosure

Malpractice Judgments and Arbitration Awards

(within the past 10 years) None Reported

Malpractice Settlements

(If there are 3 or more settlements of $150,000 or greater within the past 5 years) None Reported

Convictions for any crime involving moral turpitude

None reported by the courts.

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